v1.4: Distribute spl tokens (#13688)

* Add helpers to covert between sdk types

* Add distribute-spl-tokens to args and arg-parsing

* Build spl-token transfer-checked instructions

* Check spl-token balances properly

* Add display handling to support spl-token

* Small refactor to allow failures in allocation iter

* Use Associated Token Account for spl-token distributions

* Add spl token support to balances command

* Update readme

* Add spl-token tests

* Rename spl-tokens file

* Move a couple more things out of commands

* Stop requiring lockup_date heading for non-stake distributions

* Adjust solana_rbpf log level up in coverage

* Use epsilon for allocation retention

scripts/coverage.sh

@@ -53,7 +53,7 @@ if [[ -n $CI || -z $1 ]]; then
 fi
 
 RUST_LOG=solana=trace _ "$cargo" nightly test --target-dir target/cov --no-run "${packages[@]}"
-if RUST_LOG=solana=trace _ "$cargo" nightly test --target-dir target/cov "${packages[@]}" 2> target/cov/coverage-stderr.log; then
+if RUST_LOG=solana=trace,solana_rbpf::vm=debug _ "$cargo" nightly test --target-dir target/cov "${packages[@]}" 2> target/cov/coverage-stderr.log; then
   test_status=0
 else
   test_status=$?